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1Z0-898 exam Dumps Source : Java Platform Enterprise Edition 6 Java(R) Persistence API Developer Certified Expert

Test Code : 1Z0-898
Test cognomen : Java Platform Enterprise Edition 6 Java(R) Persistence API Developer Certified Expert
Vendor cognomen : Oracle
: 63 real Questions

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Oracle Java Platform Enterprise Edition

Oracle Java regular version Runtime environment | killexams.com real Questions and Pass4sure dumps

Oracle Java ordinary version Runtime atmosphere (also known as JRE SE, Java SE or Java SE Runtime atmosphere) is a closed-supply and freely distributed laptop know-how that presents a straightforward option to elope Java programs on any Linux-primarily based working gadget.

Invented via solar Microsystems

in the ascend invented by means of sun Microsystems for interactive television, the software became previously referred to as Java 2 Platform, general edition or J2SE. It became later received with the aid of the Oracle organisation that now actively develops and continues the supply code.

it is referred to as Java SE (average edition) because the know-how is likewise allotted as a Micro version (ME) and an enterprise version (EE), which can breathe organize best for embedded techniques/cellular instruments and business computing systems respectively.

allotted as binary applications for any Linux distributions

The assignment permits clients to value any the latest and top-quality Java applied sciences from each the information superhighway and Java purposes which are always allotted as JAR data. it is distributed as binary archives that may likewise breathe deployed on any sixty four-bit or 32-bit GNU/Linux distribution.

in addition to the commonplace binary data, Oracle additionally provides Linux users with binary programs for any RPM-based Linux distributions, including purple Hat business Linux, Fedora, openSUSE and OpenMandriva.

Supported on numerous operating techniques

The JRE (Java Runtime environment) and JDK (Java structure kit) platforms are platform-unbiased and compatible with many open supply and commercial working techniques, similar to Linux, BSD, Solaris, Microsoft home windows and Mac OS X, helping the 64-bit, 32-bit and SPARC architectures.

while the Java Runtime ambiance platform is used simplest for enjoying loaded web content material and Java courses, the Java construction outfit platform helps Java developers to create up to date content material for sites or function-rich applications that toil on multiple platforms.

Java construction outfit carries Java Runtime environment

it's additionally primary to know that JDK (Java structure package) incorporates the JRE (Java Runtime atmosphere) platform, so you don’t must down load them one after the other if your leading purpose is to develop in Java.

Java Runtime environment Java common edition Oracle Java Oracle Java JRE SE


Oracle: Java EE needs an Open supply groundwork | killexams.com real Questions and Pass4sure dumps

news

Oracle: Java EE needs an Open supply basis
  • with the aid of John ok. Waters
  • 08/17/2017
  • With Java EE 8 poised to budge GA, and JavaOne 2017 just across the corner, Oracle Corp. says the time is redress to "rethink" how Java EE is developed, and it breathe when you deem that the talents benefits of relocating the platform and linked applied sciences to an open supply foundation "to relent it extra agile and responsive to altering trade and expertise demands."

    The Redwood Shores, Calif.-primarily based steward of Java do ahead that thought today on The Aquarium weblog.

    "We accept as equable with that stirring Java EE technologies to an open supply foundation may well breathe the redress next step, to breathe able to undertake greater agile procedures, do into outcome more bendy licensing, and alter the governance method," wrote Oracle application evangelist David Delabassee. "We routine on exploring this opportunity with the neighborhood, their licensees and a number of candidate foundations to examine if they are able to movement Java EE ahead during this route."

    The roster of applied sciences that drop beneath the Java Platform commercial enterprise version umbrella at present includes each open and proprietary tech. The TCKs (verify compatibility kits), for instance, which can breathe used to validate and witness an implementation of the spec is compliant, are proprietary. And Java EE is licensed under an Oracle commercial license.

    Mike Lehman, VP of product management at Oracle, additionally pointed to the notoriously byzantine Java Specification Participation agreement (JSPA), which former Chair of the Java neighborhood system (JCP) Patrick Curran as soon as known as "large and horrifying," as Part of the Java EE construction technique that can breathe dramatically enhanced via one of these stream.

    "The system itself within the JCP is idiosyncratic to the Java neighborhood and locality to licensing suggestions and criminal terms that are often not seen as permissive and straightforward as different foundations," Lehman observed in an electronic mail, "like Apache or Eclipse…"

    Lehman allowed that what Oracle is suggesting isn't as an Awful lot about open sourcing Java EE because it is "opening up and updating the technique associated with Java EE to breathe confiscate with the focused open source basis manner."

    within the Aquarium do up, Delabassee emphasized that, whereas Oracle is exploring this thought, it intends "to fulfill its ongoing commitments to builders, conclusion clients, consumers, know-how patrons, expertise contributors, partners, and licensees."

    "And they can aid current Java EE implementations and future implementations of Java EE eight," he wrote. "we will proceed to participate sooner or later evolution of Java EE technologies. but they dependence a extra open system, that isn't stylish on a single vendor as platform lead, will motivate improved participation and innovation, and may breathe in optimum pastimes of the neighborhood."

    at the least one leading vendor believes Oracle is on the perquisite track. "We feel that putting Java EE under the jurisdiction of an open source organization is a extremely advantageous stream with a view to odds the entire business Java group," spoke of John Clingan, senior precept product manager at red Hat, in an electronic mail. "whereas there's a lot of detail to flesh out, crimson Hat is confident and applauds Oracle's determination to boost Java EE under an open and collaborative group."

    pink Hat is a member of the JCP and leads the CDI and Bean Validation Java EE-linked JSRs. The company is a Java EE licensee, and its JBoss commercial enterprise utility Platform is thoroughly Java EE-appropriate.

    one other JCP member, Reza Rahman, a longtime commercial enterprise Java evangelist and founding member of the Java EE Guardians, likewise liked the thought.

    "this is improbable news," Rahman instructed ADTMag, "and a long time coming."

    Rahman and the Guardians any started making the case that Oracle has been "conspicuously neglecting" Java EE when you deem that the community turned into based ultimate year.

    "I suppose it continues to breathe actual that Oracle undervalues Java EE," he observed. "I achieve not deem the enterprise knows Java EE and what it could actually achieve for it the style, for example, Microsoft understands the cost of .internet. this is basically a huge conquest for many of us in the neighborhood. Now the ball is in their courtroom, and the onus is upon us to capitalize from it."

    Oracle needs remarks on this suggested original course for Java EE construction, and the business is presenting a spot to weigh in by means of e-mail: remarks@javaee.companies.io.

    about the writer

    John has been protecting the excessive-tech beat from Silicon Valley and the San Francisco Bay locality for nearly two a long time. He serves as Editor-at-enormous for software construction traits (www.ADTMag.com) and contributes continuously to Redmond magazine, The expertise Horizons in schooling Journal, and Campus expertise. he is the writer of greater than a dozen books, including The every shrimp thing e engage to companionable Media; The every shrimp thing computer e-book; Blobitecture: Waveform structure and Digital Design; John Chambers and the Cisco approach; and Diablo: The dependable approach ebook.


    Eclipse releases GlassFish 5.1 for Java EE eight | killexams.com real Questions and Pass4sure dumps

    moving forward with its construction of commercial enterprise Java, the Eclipse groundwork will deliver its personal version of the GlassFish software server, which historically has served as a reference implementation of the Java EE (Java business edition) platform.

    Eclipse GlassFish 5.1 is suitable with the Java EE 8 specification and represents the full migration of GlassFish to the open source Eclipse basis. The GlassFish application server supports commercial enterprise applied sciences together with JavaServer Faces, commercial enterprise JavaBeans, and Java Message service.

    From Oracle to Eclipse basis

    Eclipse, which took over the evolution of business Java from Oracle ascend in 2017, famed the liberate serves as a step towards making inevitable backward compatibility with Jakarta EE, which is Eclipse’s planned successor to Java EE. The next edition of Eclipse GlassFish, Eclipse GlassFish 5.2, will duty a Jakarta EE eight-appropriate reference implementation.

    The migration of GlassFish to Eclipse was an “colossal” engineering and felony problem, the basis observed. GlassFish and Oracle Java EE API contributions to Jakarta EE now are comprehensive. Java EE TCK (verify compatibility kits), formerly personal and proprietary, now are open supply and hosted at Eclipse. also, the Eclipse GlassFish code foundation became re-licensed from the CDDL-GPL (typical structure and Distribution License, GNU frequent Public License) and Classpath to the Eclipse Public License 2.0 plus GPL with the Classpath Exception.

    From Java EE to Jakarta EE

    Jakarta EE is a company and a collection of specifications, simply as Java EE become a brand and set of necessities. Java application servers will breathe stirring from Java EE to Jakarta EE. however, the Jakarta EE specification routine continues to breathe in construction. the primary unencumber of Jakarta EE could breathe Jakarta EE 8, comparable to Java EE 8. Eclipse hopes to free up Jakarta EE 8 via mid-12 months. later on, plans summon for in view that the addition of capabilities comparable to modularization, microservices, and a reactive, non-blocking off model to Jakarta EE. Modularization would retain business Java in sync with Java SE (ordinary edition). Jakarta EE could breathe focused on cloud-native deplloyments. Eclipse additionally requires assorted, suitable reference implementations of Jakarta EE.

    the position to download Eclipse GlassFish 5.1

    The construction unlock of Eclipse GlassFish 5.1 should breathe downloadable from Eclipse ascend Tuesday, January 29, 2019.


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    Java Enterprise Edition 7 | killexams.com real questions and Pass4sure dumps

    JSR-338

    Most enterprise applications will need to deal with persistent data, and interaction with relational databases can breathe a tedious and difficult endeavor. The Java Persistence API (JPA) specification aims to provide an protest view of backend storage in a transactionally-aware manner. By dealing with POJOs, JPA enables developers to effect CRUD operations without the need for manually tuning SQL.

    To activate JPA, a META-INF/persistence.xml file must breathe present in the JAR or WAR in which persistence functionality is to breathe used; however, a default data-source is now provided, simplifying testing and development.

    Example META-INF/persistence.xml:

    <?xml version="1.0" encoding="UTF-8"?> <persistence version="2.1" xmlns="http://xmlns.jcp.org/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd"> <persistence-unit name="MyPU" transaction-type="JTA"></persistence-unit> </persistence>

    New in JPA 2.1 is:

    Support for Stored Procedures

    We may exercise the original @NamedStoredProcedureQuery annotation atop an entity to define a stored procedure:

    @Entity @NamedStoredProcedureQuery(name="newestBlogsSP", procedureName="newestBlogs") public class Blog {...}

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    StoredProcedureQuery query = EntityManager.createNamedStoredProcedureQuery("newestBlogsSP"); query.registerStoredProcedureParameter(1, String.class, ParameterMode.INOUT); query.setParameter(1, "newest"); query.registerStoredProcedureParameter(2, Integer.class, ParameterMode.IN); query.setParameter(2, 10); query.execute(); String response = query.getOutputParameterValue(1);

    Bulk Update and Delete via the Query API

    CriteriaUpdate, CriteriaDelete, and CommonAbstractQuery interfaces own been added to the API, and the AbstractQuery interface has been refactored.

    A spec example of a bulk update may examine like:

    CriteriaUpdate<Customer> q = cb.createCriteriaUpdate(Customer.class); Root<Customer> c = q.from(Customer.class); q.set(c.get(Customer_.status), "outstanding") .where(cb.lt(c.get(Customer_.balance), 10000));

    Entity listeners using CDI

    Listeners on existing entity events @PrePersist, @PostPersist, @PreUpdate, and @PreRemove now back CDI injections, and entity listeners may themselves breathe annotated with @PostConstruct and @PreDestroy.

    Synchronization of persistence contexts

    In JPA 2, the persistence context is synchronized with the underlying resource manager. Any updates made to the persistence context are propagated to the resource manager. JPA 2.1 introduces the concept of unsynchronized persistence context. Here is how you can create a container-managed unsynchronized persistence context:

    @PersistenceContext(synchronization=SynchronizationType.UNSYNCHRONIZED) EntityManager em;

    Java Community Process approves Java EE 6 | killexams.com real questions and Pass4sure dumps

    Java Community Process approves Java EE 6

    New version of Java Enterprise Edition adds back for function-based profiles, and more

  • By John K. Waters
  • Dec 11, 2009
  • The Java Enterprise Edition specification (Java EE 6) has been approved by the Java Community Process (JCP). The final release is now  available .

    The Java EE 6 specification comprises about 30 additional specs and is a continuation of many of the approaches and ideas of its predecessor, Java EE 5. However, this version emphasizes a evolution model driven by metadata. It likewise adds more extensibility points and service-provider interfaces to allow other technologies to plug into the platform implementations, essentially making life easier for Java EE developers. 

    Among the most talked about capabilities in Java EE 6 is its back for function-based profiles. Profiles provide a artery for users to define a subset of the Java EE specification and still achieve certification, said Gartner analyst Massimo Pezzini.

    "In Java EE 5 and previous versions, in order to achieve certification, you had to implement the full set of Java EE APIs," Pezzini said. "And there are a ton of those. This is the intuition there aren't that many products that are Java EE-certified. Basically, it's only the expansive vendors -- JBoss, Oracle WebLogic, IBM WebSphere -- who can really afford to do together a Java EE-compliant product]. But with profiles, you can define a subset of the Java EE APIs and achieve certification only for that particular subset."

    The first Java EE 6 profile has been defined by the JCP expert group and is included in this release. Dubbed the Web Profile, it's a subset of the full Java EE spec aimed at Web application developers. The JCP describes it as "a more gentle introduction to the Java EE platform" that provides only those technologies needed by most Web application developers, "without the enterprise technologies that sometimes muddle such developers."

    In other words, it's the technology typically used to build a Web application, Pezzini said. "The expectation is that a whole bunch of products that can't today achieve Java EE certification, because they don't implement the more sophisticated features, will breathe able to achieve a plane of certification," he said. "They started with the Web Profile because it's the most popular."

    Rod Johnson, founder of VMware subsidiary SpringSource and member of the JCP Executive Committee, is less impressed. "Profiles in concept are the most significant original feature," he said, "but in practice they didn't gyrate out the artery they had hoped. When the Java EE 6 goals were originally set out, they were very enthusiastic about the fact that profiles would relent the platform a lot more modular and aligned with what people were actually doing in the real world. The intermission result is that the foundation profile tended not only to breathe a lot bigger than they would own liked, but likewise continued the trend of the past, where a original specification ends up putting out original technologies that are unproven."

    Johnson is more enthusiastic about the Java Persistence API 2.0 (JPA), the Java API for the management of persistence and object-relational mapping for Java EE and Java SE environments. He's likewise a fan of a original feature that defines a meta-data model and API for JavaBean validation.

    The Java EE 6 spec likewise applies the profiles concept to Enterprise JavaBeans 3.1 specification with EJB Lite, a smaller subset of the EJB API. It includes such features as transactions and security, but leaves out features such as messaging, remote access and scheduling.

    "The thinking here is that EJB Lite will relent EJB a shrimp bit more approved in the developer community, which has been hesitant to adopt the technology because of its complexity," Pezzini said.

    The Java EE 6 spec was launched in 2007 as Java Specification Request (JSR) 313, then re-launched as JSR-316. (JSRs are the formal documents that report proposed additions and changes to the Java platform.) The original routine was to complete the spec in 2008, but the first Public Review Ballot wasn't reached until earlier this year.

    Other Java EE component JSRs were approved along with the Java EE 6 spec, including Servlet 3.0, JPA 2.0, EJB 3.1, Connector 1.6 and CDI 1.0. The Managed Beans 1.0 specification was likewise approved.

    About the Author

    John K. Waters is a freelance writer based in Silicon Valley.


    Java Feature — Using the Java Persistence API (JPA) with Spring 2.0 | killexams.com real questions and Pass4sure dumps

    The EJB 3.0 Java Persistence API (JPA) was released in May 2006 as Part of the Java Enterprise Edition 5 (Java EE) platform, and it has already garnered a noteworthy deal of attention and praise. What began as merely an easier-to-use successor to the much-maligned container-managed persistence (CMP) portion of the EJB component gauge soon evolved into a full-blown incorporation of the existing best practices of the most prominent and approved object-relational (O-R) persistence products in use. The result is that applications now own a modern gauge for lightweight enterprise Java persistence that they can exercise in any compliant Java EE 5 application server, or in Java gauge Edition (SE) applications.

    The Spring application framework has been in actuality for four years, and it has become a approved choice both in an application server context and standalone. enjoy JPA, Spring is a technology designed to allow applications to breathe built from POJOs. The Spring Framework runs within whatever runtime context an application requires, and it supports applications by providing a wide attain of services. Some of these services are abstractions over existing container-level services, whereas others add value to the Java EE container. The persistence access layer, which is particularly approved with the Spring community, is nicely integrated with whatever persistence runtime is being used and facilitates a sound testable architectural approach to working with persistent objects. Spring 1.x included back for a variety of open source and commercial persistence implementations such as TopLink, Hibernate, iBATIS, and JDO, as well as the gauge Java database connectivity (JDBC) API that's Part of the Java runtime. Spring 2.0 was a major milestone and introduced additional integrated back for JPA. In this article we'll argue how to exercise Spring and JPA together and highlight some of the benefits that this architecture can bring to an application.

    Spring as a JPA ContainerThe Java Persistence API was architected so it could breathe used both inside and outside a Java EE 5 container. When there's no container to manage JPA entity managers and transactions, the application must endure more of the management burden. When running in a JPA container the user undergo is more hospitable.

    One goal of the JPA specification was to relent the technology pluggable. To enable this, the roles of container provider (the container or the side that has control of the runtime threads and transactions), and persistence provider (the provider or the Part that implements the persistence API and manages the persistent entities) were defined, and a service provider interface (SPI) binds the two at deployment and runtime. A compliant JPA host container correctly implements this SPI from the container perspective. A compliant JPA persistence provider implements the SPI from the provider perspective. If both sides ensue the rules, a compliant container should breathe able to elope any compliant persistence provider implementation, and similarly, a provider should plug into any container.

    Although Spring is neither an application server nor a Java EE 5 container, it does enhance, augment, and sometimes implement many of the services used in application servers. Spring 2.0 implements the container portion of the JPA SPI so it can breathe viewed as a JPA container. As such, it provides the class-loading and weaving back that JPA providers exercise to back manage the entities at runtime. Users capitalize from an environment in which the runtime container and the JPA persistence provider are tightly integrated, but not necessarily in a Java EE 5 context. This provides many of the benefits of Java EE persistence without requiring a Java EE container.

    Defining EntitiesThe most basic Part of using JPA is to design and create the entities to breathe persisted. For the purposes of this article, they will exercise an extremely simplified library engage inventory system with a single entity to illustrate the concepts concretely in Java code.

    We'll create a simple engage entity by defining the class and annotating it with an @Entity annotation. The table that stores engage instances will default to BOOK, which is exactly what they want. The primary key identifier is the isbn field, so they annotate that province with @Id. Because the title and author fields are basic mappings from the protest fields to columns of the very cognomen in the database table, they don't own to achieve anything to them. They want the genre province to map to a database column named CATEGORY, so they give it a @Column annotation. The resulting engage entity class is shown below.

    package org.bookguru;

    import javax.persistence.*;@Entitypublic class engage {

        @Id private int isbn;

        private String title;

        private String author;

        @Column(name="CATEGORY")    private Genre genre;

        // Constructors, getters and setters, etc.}

    Of course a real application would own many entities, but because they want to focus on the exercise of JPA in Spring, they won't complicated how to define and map JPA entities. For more information on defining JPA entities descry Pro EJB 3: Java Persistence API.

    Using JPA Entities in SpringThe primary artery to operate on entities is by using an entity manager. The EntityManager API is the main gateway into JPA and supports basic create/read/update/delete (CRUD) operations. It acts as both a manager of any loaded entities and a factory for queries that enable more entities to breathe loaded. An entity manager is analogous to an Oracle TopLink session, Hibernate session or an equivalent interface provided by many O-R mapping frameworks.

    For example, to create a original persistent entity they would simply create a original Java protest of the redress entity type, invoke the persist() routine on the entity manager, and pass the original entity as a parameter. Assuming they own access to an entity manager, the code to create a original engage is simple.

        engage book = original Book(12769356, "War and Peace", "Leo Tolstoy", Genre.FICTION);    entityManager.persist(book);

    Using JPA and the entity manager in Spring is very simple. In most cases it's simply a matter of annotating a province or routine of a Spring bean with @PersistenceContext, which causes an entity manager to breathe injected. Then invoke the entity manager in the context of a container transaction. Note that @PersistenceContext is a gauge JPA annotation and not specific to Spring.

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